======================== unified (from filesystem) ========================
                                         'bitrate'  '175.897'
                                        'duration'  '270'
                                          'artist'  'John Greaves'
                                     'text_people'  ''
                                         'release'  'progsoup 12'
                                           'title'  'Chanson Pour Elle'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['canterbury scene', 'art rock', 'chanson', 'progressive rock', 'french pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '19'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '136.9'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'progsoup 12'
'TBPM' (BPM (beats per minute))                     '136.9'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace', 'set-pl-progspace']
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Chanson Pour Elle'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'John Greaves'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '19'
'TXXX:Compilation'                                  '0'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:iTunNORM'                                     ('0000033E 00000367 000060A2 00006DEE 0001D586 0001D586 00007F10 00007F10 '
 '0000C421 0000C421')
'TXXX:iTunSMPB'                                     ('00000000 00000840 00000288 0000000000B5F938 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TXXX:iTunes_CDDB_IDs'                              '11+539399FCD317D9E63F7932AE5A5E00BB+10647965'
'TXXX:lastfmtags'                                   ['canterbury scene', 'art rock', 'chanson', 'progressive rock', 'french pop']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.55 dB'
'TXXX:replaygain_track_peak'                        '0.704903'

========================== row from database ==========================
                                              'id'  1410159
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/Progsoup 12/666 john greaves -chanson pour elle.mp3
                                         'working'  None
                                         'bitrate'  175
                                    'duration_sec'  270
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  5950503
                                           'mtime'  1620736296
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP Progsoup 666 john greaves chanson pour elle rock cppex progressive;set pl progspace
                                      'tag_artist'  John Greaves
                                     'tag_release'  progsoup 12
                                       'tag_title'  Chanson Pour Elle
                                             'bpm'  136.9
                                    'search_title'  'chanson':1 'elle':3 'pour':2
                                   'search_artist'  'greaves':2 'john':1
                                  'search_release'  'progsoup':1
                                     'search_rest'  '666':3 'chanson':6 'classicprogpsy':1 'cppex':10 'elle':8 'greaves':5 'john':4 'pl':15 'pour':7 'progressive':11,13 'progsoup':2 'progspace':16 'rock':9 'set':12,14
                                    'search_combo'  '666':9 'chanson':1A,12 'classicprogpsy':7 'cppex':16 'elle':3A,14 'greaves':5B,11 'john':4B,10 'pl':21 'pour':2A,13 'progressive':17,19 'progsoup':6C,8 'progspace':22 'rock':15 'set':18,20
                                    'tag_tracknum'  19
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['canterbury scene', 'art rock', 'chanson', 'progressive rock', 'french pop']
                                        'tag_date'  2008
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736296.265591  (2021-05-11 14:31:36)
                             'size'  5950503